Transcription of FULLY LINED VALVES FOR SULFURIC ACID SERVICES
1 FULLY LINED VALVES FOR SULFURIC acid SERVICES Applica5on Descrip5on: ChemValve Solu5ons: The use of concentrated SULFURIC acid for pH ChemValve recommends our model 880 SHC FULLY LINED ball check valve control in water and wastewater treatment, with a high rate spring that requires 10 psi of di eren=al pressure agriculture, bio energy and chemical processes across the check valve, in the normal ow direc=on, to crack the ball is o:en the best choice due to the ready o the seat. This insures that when the check valve in the closed availability, low cost and e ec=veness of this posi=on, it will have adequate seat load to prevent the migra=on of acid . For example, in the pulp and paper water back into the SULFURIC acid . ChemValve also recommends our PFA industry, the SULFURIC acid is used to adjust the liner material for the concentrated SULFURIC acid VALVES due to the pH of the chlorine dioxide being generated for possible heat build up from this applica=on. the bleach towers. Handling and injec=on of In chlorine dioxide service, ChemValve recommends that the spring for the acid requires some special considera=ons the check VALVES be made of =tanium.
2 Hastelloy C has cannot stand up for all VALVES currently being used in the over =me in the chlorine dioxide service. ChemValve also recommends concentrated SULFURIC acid injec=on systems. the PVDF (Kynar) liner material for the dilute SULFURIC acid service if the process uid is chlorine dioxide to leaching through the liner. Control VALVES used in these applica=ons will normally require a large Issues with Applica5on: rangeability valve. ChemValve can handle this with our Model Lack of =ght shut o from the check 790EB 150 with our V Port seat design. VALVES . SULFURIC acid has a great a nity for water. It will draw MODEL 880 SHC MODEL 790EB V PORT SEAT through the check valve the water (or process uid) from the mixing tee side if there is not enough seat load to assure =ght shut o of the check valve. Control VALVES being used are not providing the best range of control for this di cult applica=on.
